General System Description

The Mitsubishi F4A22 is a fully automatic four-speed electronically controlled transaxle. All models are equipped with a lock up torque converter.

The Electronic Control Module receives inputs from the following:
^ Pulse Generator "A"
^ Pulse Generator "B"
^ Coolant Temperature Sensor
^ Oil Temperature Sensor
^ Throttle Position Sensor
^ Idle Motor Position Switch
^ Accelerator Switch
^ Inhibitor Switch
^ Kickdown Servo Switch

The Electronic Control Module calculates if a shift change is needed and controls the following outputs:
^ Damper Clutch Control Solenoid Valve
^ Pressure Control Solenoid Valve
^ Shift-Control Solenoid Valves